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10 Things To Put In Your Tomato Planting Hole For The Best And Juiciest Tomatoes Ever

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Tomatoes are among the most beloved crops in home gardens globally, known for their versatile use in cooking and their vibrant addition to any garden.

However, achieving the perfect tomato – juicy, flavorful, and perfectly ripe – is something of an art form, heavily influenced by how one prepares their planting hole.

This process is not just about digging a space in the soil; it’s about creating a nurturing environment that caters to the specific nutritional needs of the tomato plant.

In this article, we’ll explore ten crucial amendments to add to your tomato planting holes to ensure your tomatoes are the best and juiciest ever.

Why Tomatoes Are Fussy About Their Soil

Tomato plants are notoriously finicky about their growing conditions, especially the soil they call home. They require a delicate balance of nutrients, moisture, and pH to thrive.

Seasoned gardeners often emphasize that the secret to healthy, productive tomato plants starts with the soil.

By enriching the soil with specific amendments, you can address nutrient deficiencies, enhance soil structure, and boost your plant’s health and fruit production.

These initial steps in soil preparation can make the difference between a bountiful harvest and a disappointing crop.

1. Compost

One of the best things you can add to any garden soil, especially for nutrient-hungry tomatoes, is compost.

This decayed organic matter is rich in nutrients and is excellent at improving soil structure. Compost introduces beneficial microorganisms that help break down organic material into nutrients that tomato plants can absorb.

Additionally, it enhances the soil’s ability to retain water, which is crucial for maintaining the moisture level that tomatoes need to grow healthily.

When preparing your tomato planting holes, mix in a couple of shovels of well-rotted compost. This will provide a slow release of nutrients throughout the growing season and help keep the soil aerated, allowing roots to expand easily.

2. Eggshells

Tomato plants require a steady supply of calcium to prevent blossom end rot, a common disorder that causes black, sunken spots on the bottom of the fruit. Eggshells are an excellent source of calcium carbonate, a key ingredient for preventing this issue.

By crushing eggshells into a fine powder and sprinkling them into the planting hole, you can give your tomatoes a calcium boost that will help ensure healthy cell growth in the developing fruits.

Moreover, eggshells decompose slowly, providing a long-term supply of calcium that helps stabilize soil pH and improve its structure. This is particularly beneficial in areas with acidic soil.

3. Coffee Grounds

Coffee grounds are a fantastic addition to the tomato planting hole for several reasons. Primarily, they are rich in nitrogen, a critical nutrient for foliage growth.

As they decompose, coffee grounds slowly release nitrogen into the soil, feeding your tomato plants throughout the season.

Additionally, coffee grounds help to improve soil drainage and aeration while maintaining moisture levels.

They also slightly lower the pH of the soil, which can be beneficial for tomatoes as they prefer slightly acidic conditions.

Another bonus is that coffee grounds can deter certain garden pests, such as slugs and snails, which are often attracted to tomato plants.

4. Epsom Salt

Epsom salt, or magnesium sulfate, provides two essential nutrients to tomatoes: magnesium and sulfur.

Magnesium is crucial for photosynthesis, as it is a central component of the chlorophyll molecule in plant leaves.

Adding Epsom salt to the planting hole can boost leaf greenness and strength, leading to more robust plant growth and potentially higher yields.

To use Epsom salt, sprinkle about a tablespoon into the hole before planting. This can help enhance fruit flavor and color while promoting stronger root systems and plant resilience.

5. Banana Peels

Banana peels are a great source of potassium, another vital nutrient for tomato health. Potassium aids in the overall functions of the plant, from nutrient absorption to water regulation, and it plays a critical role in the development of fruits.

Chopped banana peels can be placed in the bottom of the planting hole or mixed with the soil to decompose naturally.

As they break down, the peels slowly release potassium, which helps improve the size and flavor of the tomatoes.

6. Kelp Meal

Kelp meal is derived from seaweed and is packed with trace minerals, amino acids, and natural plant hormones that can significantly benefit tomato plants. These elements can enhance plant vigor by encouraging more rapid growth and increased yields.

Kelp also increases frost tolerance and disease resistance, making your tomato plants hardier and more resilient.

Mix a handful of kelp meal into the soil at the bottom of your planting holes to infuse your tomatoes with these powerful growth stimulants.

7. Aspirin

Using aspirin in the garden may sound unconventional, but it can have some surprising benefits for tomatoes.

Aspirin contains salicylic acid, which mimics a hormone in plants that triggers a natural defense mechanism against diseases and pests.

By crushing a standard aspirin tablet and dissolving it in water to pour over the soil, you can potentially enhance the immune system of your tomato plants, helping them fend off diseases like blight and fungal infections.

Research on this method has shown mixed results, but many gardeners swear by it for healthier, more vigorous plants. It’s a simple, low-cost trick that might just make a noticeable difference in your garden.

8. Fish Heads

Fish heads might not be the first thing that comes to mind when you think about garden amendments, but they are a time-honored secret among seasoned gardeners for enriching soil.

Fish remains have been used by Native Americans for centuries to fertilize plants. Rich in nitrogen, phosphorus, and calcium, fish heads decompose in the soil, slowly releasing these crucial nutrients that tomatoes crave.

When planting your tomatoes, dig a deep hole, place a fish head at the bottom, and cover it with a layer of soil before adding your plant.

This prevents animals from digging it up and ensures a slow release of nutrients directly to the tomato roots.

The fish material also acts as a natural compost, encouraging microbial activity in the soil, which enhances plant growth.

9. Mycorrhizal Fungi

Mycorrhizal fungi form a symbiotic relationship with tomato roots, significantly enhancing the plant’s ability to absorb water and nutrients, particularly phosphorus.

By expanding the root system’s reach, these fungi play a critical role in plant health and fruit production.

You can buy mycorrhizal fungi in granular or powder form. Sprinkle it into the hole before planting your tomatoes to ensure that the fungi directly contact the roots.

This natural enhancement promotes vigorous growth and can lead to an improved yield of tomatoes, especially important in soils that are low in nutrients.

10. Worm Castings

Worm castings, or worm poop, are an excellent organic fertilizer high in nitrogen, phosphorus, and potassium — all vital for the health of your tomatoes.

These castings also contain micronutrients essential for plant growth that are not found in many synthetic fertilizers.

Adding worm castings to your planting holes helps improve soil aeration and drainage while adding beneficial microbes that aid in nutrient absorption.

Mix a handful of worm castings into the soil at the bottom of each planting hole or sprinkle around the base of your plants.

This not only feeds your tomatoes but also enriches the soil with organic matter, improving soil structure and fertility over time.

Common Mistakes to Avoid

While exploring new methods to boost your tomato growth, it’s also important to be aware of common pitfalls:


More is not always better. Excessive use of any amendment, especially synthetic fertilizers, can lead to nutrient burn and inhibit plant growth.

Planting too shallow

Ensure that tomato plants are planted deep enough to establish a robust root system. The deeper the roots, the more resilient the plant.

Ignoring pH levels

Tomatoes prefer slightly acidic soil (pH 6.0-6.8). Ignoring soil pH can hinder nutrient uptake and reduce crop yield.

Neglecting pest control

While organic amendments can deter pests, remain vigilant about common tomato pests like hornworms and aphids.

In conclusion, preparing your tomato planting holes with the right amendments is crucial for cultivating healthy, flavorful, and juicy tomatoes.

From organic matter like compost and worm castings to unconventional additions like fish heads and aspirin, each component plays a significant role in enhancing soil quality and providing the nutrients that tomatoes need to thrive.

By understanding and applying these insights, gardeners can improve both the yield and quality of their tomato crops.

Remember, the key to success lies in the balance—providing your plants with what they need without overdoing it.

As you prepare your garden for planting, consider these ten amendments to ensure your tomatoes are the best they can be. Happy gardening, and here’s to a season of abundant and delicious tomatoes!

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